Shared: Adjust semantics of optional inline expectation tags

Author: hvitved

shared/util/codeql/util/test/InlineExpectationsTest.qll

@@ -223,8 +223,7 @@ module Make<InlineExpectationsTestSig Impl> {
       exists(ValidTestExpectation expectation |
         not exists(ActualTestResult actualResult | expectation.matchesActualResult(actualResult)) and
         expectation.getTag() = TestImpl::getARelevantTag() and
-        element = expectation and
-        not expectation.isOptional()
+        element = expectation
       |
         expectation instanceof GoodTestExpectation and
         message = "Missing result: " + expectation.getExpectationText()